A tenured LSU law professor removed from his classes pending an investigation into alleged political comments is suing the university, saying it violated his First Amendment rights and its own policies.

A tenured LSU professor was suspended amid an investigation into student complaints over inappropriate comments. He says the school violated his free speech and due process rights.

A group of LSU students held a protest Tuesday outside the Paul M. Hebert Law Center, demanding professor Ken Levy be reinstated following his removal from the classroom pending an investigation into alleged political comments he made.